Imported OpenSSL 1.1.1a

ms/cmp.pl

@@ -0,0 +1,53 @@
+#! /usr/bin/env perl
+# Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+($#ARGV == 1) || die "usage: cmp.pl <file1> <file2>\n";
+
+open(IN0,"<$ARGV[0]") || die "unable to open $ARGV[0]\n";
+open(IN1,"<$ARGV[1]") || die "unable to open $ARGV[1]\n";
+binmode IN0;
+binmode IN1;
+
+$tot=0;
+$ret=1;
+for (;;)
+{
+    $n1=sysread(IN0,$b1,4096);
+    $n2=sysread(IN1,$b2,4096);
+
+    last if ($n1 != $n2);
+    last if ($b1 ne $b2);
+    last if ($n1 < 0);
+    if ($n1 == 0)
+    {
+        $ret=0;
+        last;
+    }
+    $tot+=$n1;
+}
+
+close(IN0);
+close(IN1);
+if ($ret)
+{
+    printf STDERR "$ARGV[0] and $ARGV[1] are different\n";
+    @a1=unpack("C*",$b1);
+    @a2=unpack("C*",$b2);
+    for ($i=0; $i<=$#a1; $i++)
+    {
+        if ($a1[$i] ne $a2[$i])
+        {
+            printf "%02X %02X <<\n",$a1[$i],$a2[$i];
+            last;
+        }
+    }
+    $nm=$tot+$n1;
+    $tot+=$i+1;
+    printf STDERR "diff at char $tot of $nm\n";
+}
+exit($ret);